<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <el-form ref="form" :model="userInfo" :rules="rules">
        <el-form-item label="账号" prop="username">
          <el-input v-model="userInfo.username" />
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="userInfo.password" type="password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="userInfo.remember">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button
            type="primary"
            class="login_btn"
            @click="doLogin"
          >登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { FROMDATA_KEY } from '@/constants/KEY'
export default {
  name: 'Login',
  data() {
    return {
      userInfo: {
        username: JSON.parse(localStorage.getItem(FROMDATA_KEY))?.username || '',
        password: JSON.parse(localStorage.getItem(FROMDATA_KEY))?.password || '',
        remember: ''
      },
      rules: {
        // 非空校验
        // 失败的提示信息message
        username: [
          { required: true, message: '请输入账号', trigger: 'blur' }
        ],
        password: [{ required: true, trigger: 'blur',
          validator: (rule, value, callback) => {
            if (value.length < 6 || value.length > 30) {
              callback(new Error('密码长度位6-30位'))
            }
          }
        }]
      }
    }
  },
  created() {
    const formData = JSON.parse(localStorage.getItem(FROMDATA_KEY))
    if (formData) {
      this.userInfo = {
        ...this.userInfo,
        ...formData
      }
    }
  },
  methods: {
    async doLogin() {
      // 进行表单的统一校验，防止用户没有输入，没有发出去表单校验
      await this.$refs.form.validate((valid) => {
        // valid标识是否校验通过
        if (!valid) return false
      })
      console.log('校验通过')
      // 接口vuex的action
      await this.$store.dispatch('user/doLogin', this.userInfo)
      // 登陆成功，判断需不需要记住账号密码（ls实现，后端是不需要账号密码）
      if (this.userInfo.remember) {
        // 记住账号密码
        localStorage.setItem(FROMDATA_KEY, JSON.stringify({ username: this.userInfo.username, password: this.userInfo.password }))
      } else {
        // 清空已经记住的账号密码
        localStorage.removeItem(FROMDATA_KEY)
      }
      this.$router.push('/')
    }
  }
}

</script>

<style scoped lang="scss">
.login_body {
  display: flex;
}
.bg {
  width: 60vw;
  height: 100vh;
  background: url("~@/assets/login-bg.svg") no-repeat;
  background-position: right top;
  background-size: cover;
}
.box {
  margin: 200px 10% 0;
  flex: 1;
  .title {
    padding-bottom: 76px;
    font-size: 26px;
    font-weight: 500;
    color: #1e2023;
  }
  ::v-deep() {
    .ant-form-item {
      display: flex;
      margin-bottom: 62px;
      flex-direction: column;
    }
    .ant-form-item-label label {
      font-size: 16px;
      color: #8b929d;
    }
    .ant-input,
    .ant-input-password {
      border-radius: 8px;
    }
  }
}
.login_btn {
  width: 100%;
}
</style>
